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Service Manual

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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of CASIO WK1200 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Good manual. It is complete and of high quality, both text and graphics. The schematics are with the original big size, so it can be viewed or printed without any loss of resulution and sharpness.

Text excerpt from page 11 (click to view)
DAC (IC1: UPD6379GR)
The DAC receives 16-bit serial data output from the DSP. The data contains digital sound data of the melody, chord, bass, and percussion for the right and left channels. The DAC converts the data into analog waveforms and output them to each channel separately.
Synch signal SINC 6.3 V220 µ L OUT Data SI Word clock 2.2 K LRCK CLK 2700 PF WCKO Bit clock BCKI SO DSP LSI2 HG51B277FB-1 Data SI Word clock WCKI Bit clock BCK LRCK SO SCK1 CPU LSI1 GT-913F


Since the sound signals from the DAC are stepped waveforms, the filter block is added to smooth the waveforms.
AVDD 1 K 25C1740SS-TP-T 10 K Q308 Q310 AVDD 10 V22 µ AG 5600 PF 25C1740SS-TP-T




22 µF

From DAC

To main volume

0.015 µF


â 10 â

6.3 V100 µ AG





10 3.9 K

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